| We also prepared primer pairs for the 18S ribosomal RNA gene to use as an internal control. |
| In addition to markers from the linkage map, we also probed karyotypes with ribosomal RNA gene sequences and 4 of the 12 ungrouped markers. |
| Gene order changes involving protein-encoding and ribosomal RNA genes are rare events within most animal phyla. |
| Almost all eukaryotes have multiple copies of their nuclear ribosomal RNA cistrons, arranged in a long tandem array. |
| Among the 112 unique genes, we identified 79, 29, and 4 protein-coding, transfer RNA, and ribosomal RNA genes, respectively. |
| Meanwhile, growth machinery such as ribosomal RNA contains high nitrogen and phosphorus concentration. |
